prestige - Triangle Tube€¦ · 2012-13 Prestige Trimax Control Appl. Supl. This document is...

2012-13 Prestige Trimax Control Appl. Supl.

This document is intended to be used by a factory trained and qualified heat-ing contractor or service technician only. Read all instructions within thisdocument and within the PRESTIGE Boiler Installation and MaintenanceManual before proceeding. It is recommended to follow the procedures inthe steps given. Skipping or missing procedural steps could result in severepersonal injury, death or substantial property damage.

prestigeControl ApplicationSupplement - TriMax

Revised 2/10/2014

L I S T E D

WARNING

Table of Contents

i

Product and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Operating Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Entering Installer Access Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Trimax Installer Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

CH Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

DHW Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-18

Boiler Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-20

Reset All Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Factory Trimax Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Cascade Operating Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Trimax Cascade Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Cascade Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-33

Cascade Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Cascade Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-40

Modbus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41-42

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

This Control Application Supplement applies to TriMax controls with the following softwareversion numbers:

Display SWv.1.14Burner Controller SW v.0.14

This software version numbers are displayed on the initial screen after turning on the unit.

NOTICE

Product and Safety Information

1

The following terms are used throughout thismanual to bring attention to the presence ofpotential hazards or to important informationconcerning the product.

Indicates the presence of a hazardous situa-tion which, if ignored, will result in death,serious injury or substantial property dam-age.

Indicates a potentially hazardous situationwhich, if ignored, can result in death, seriousinjury or substantial property damage.

Indicates a potentially hazardous situationwhich, if ignored, may result in minor injuryor substantial property damage.

Indicates special instructions on installation,operation or maintenance, which are impor-tant to the equipment but not related to per-sonal injury hazards.

Indicates recommendations made by ACV-Triangle Tube for the installers which willhelp to ensure optimum operation andlongevity of the equipment.WARNING

NOTICE

CAUTION

DANGER

BEST PRACTICE

DEFINITIONS

IMPORTANT INFORMATION - READBEFORE PROCEEDING

This document is intended to be used by a fac-tory trained and qualified heating contractor orservice technician only. Read all instructionswithin this document and within the PRES-TIGE Boiler Installation and MaintenanceManual before proceeding. It is recommendedto follow the procedures in the steps given.Skipping or missing procedural steps couldresult in severe personal injury, death or sub-stantial property damage.

WARNING

ACV-Triangle Tube reserves the right to modify the technical specifications and components of itsproduct without prior notice.

NOTICE

Operating Information

2

OPERATING INFORMATION

The TriMax Boiler Management System is designed to be flexible yet easy to use. TriMax monitorsand controls the Prestige to operate as efficiently as possible. TriMax monitors the boiler supply,return and flue gas temperatures and operates the igniter, gas valve and blower. TriMax uses thisinformation to modulate the boiler’s firing rate to maintain the required setpoint.

TriMax offers many advanced control options, which may be adjusted for various applications toachieve optimum boiler efficiency and operation.

• Two central / space heating (CH) call inputs with separate outdoor reset curves.

• Domestic Hot Water (DHW) call input with optional priority.

• System temperature sensing and control with an optional system temperature sensor.

• Cascade function allows up to six Prestige boilers to operate together in a single heating system.

• Modbus interface for integrating with building management systems.

These advanced features are adjustable in the Installer Menu after entering an access code.

Entering Installer Access Code

3

ENTERING INSTALLER ACCESS CODE

InstallerButton

The INSTALLER button (the small round button) provides the installing contractor with full accessto all available features after entering an access code.

ENTER INSTALLERACCESS CODE

05[4]

Entering installer access code procedure1. Press the round INSTALLER button.2. Enter the installer access code “054” by using the LEFT and RIGHT

buttons to select a digit and the UP and DOWN buttons to change thedigit. Press the OK button to enter the access code.

3. The Installer Menu will be displayed after successfully entering theaccess code. The Home Screen will be displayed if the access code isnot entered correctly.

Entering the installer access code allows the installer to make adjust-ments for 30 minutes. After 30 minutes, the access code will need tobe entered again to make any adjustments.

The Installer Menu is divided into four sections:

1. CH & DHW Settings – Allows the installer to adjust the boilerscentral / space heating, domestic hot water and boiler settings for theapplication. See pages 5 through 20.

2. Manual Operation – The burner and circulators can be manuallyenabled for testing. See page 43.

3. Reset All Settings – Resets all CH, DHW, Boiler, and CascadeSettings back to the factory defaults. See pages 20 through 21.

4. Cascade – Allows the installer to setup, adjust, and monitor theCascade System. See pages 22 through 40.

NOTICE

CH & DHW Settings

Fig. 1: TriMax Navigation Buttons

Trimax Installer Menu Structure

4

CH & DHW Settings

Home Screen

ENTER INSTALLERACCESS CODE

05[4]

CH & DHW Settings Menu Reset All Settings Cascade Menu Manual Operation

Installer Menu

Installer Access Code

CH Settings Reset All Settings

Press OK buttonto restore factory settings,

any other buttonto keep current settings

Cascade Information Manual Operation

Released

O!

O!

O!

CHCH1

FAN

DHW

SYSCH2

TriMax Installer Menu Structure

CH Settings

5

CH Settings Navigation: Home Screen>Installer Menu>CH & DHW Settings>CHSettingsThe CH Settings menu contains settings related to central heating oper-ation. Each line contains a CH Setting followed by its current value.Six CH Settings are displayed on the screen at one time. Press the UPor DOWN buttons to scroll through additional CH Settings.Heating Operation Default: EnabledHeating Operation allows the central heating function to be enabled anddisabled. Press the UP or DOWN buttons to select Enabled or Disabledthen press the OK button to store the setting.

• Enabled - The Prestige will respond to a central heating call.• Disabled - The Prestige will not respond to a central heating call.

The heating operation disabled icon is displayed on the homescreen when central heating operation has been disabled.

Demand Type Default: Switch & Outdoor ResetDemand Type allows the installer to select how a CH Demand is generat-ed. Press the UP or DOWN buttons to select the CH Demand Type thenpress the OK button to store the setting. The CH Demand options are:

• Switch & Outdoor Reset – A central heating call from a dry con-tact switch will enable the Prestige and the setpoint will vary withthe outdoor temperature for central heating calls

• Switch & Setpoint - A central heating call from a dry contactswitch will enable the Prestige and the setpoint will be fixed forcentral heating calls

• Constant & Outdoor Reset - The Prestige will maintain setpointand the central heating circulators will be constantly enabled with-out an external call from a dry contact switch. The central heatingcirculators will be disabled when the outdoor temperature exceedsthe Warm Weather Shutdown Temperature setting. The setpointwill vary with the outdoor temperature for central heating calls.

• Constant & Setpoint - The Prestige will maintain setpoint and thecentral heating circulators will be constantly enabled without anexternal call from a dry contact switch. The central heating circula-tors will be disabled when the outdoor temperature exceeds theWarm Weather Shutdown Temperature setting. The setpoint will befixed for central heating calls.

• 0-10V Modulation Signal – This option allows the Prestige firing rateto be controlled by an external control system with a 0-10 VDC signal.

Heating Settings

Heating OperationDemandAbsolute Max CHCH1 Maximum SetpointCH1 Minimum SetpointReset Curve Coldest Day

EnabledSwitch & Outdoor

Setpoint 188ºF180ºF120ºF

0ºF

Heating Operation Enabled

Heating Operation

DisabledEnabledEnabled

Demand Type

Switch & Outdoor ResetSwitch & Set point

Constant & Outdoor ResetConstant & Setpoint

0-10V Modulation Signal

Switch & Outdoor Reset

CH Settings

6

Absolute Max CH Setpoint Default: 188°F [87°C]Absolute Max CH Setpoint can be used to prevent a user from adjusting thecentral heating setpoint or outdoor reset curve above a safe operating tem-perature in the EZ Setup Menu. A warning screen will be displayed in EZSetup if the user attempts to raise the setpoint above the Absolute Max CHSetpoint. The Absolute Max CH Setpoint will be displayed on the outdoorreset curve in EZ Setup if the user selects an outdoor reset curve which goesabove the Absolute Max CH Setpoint. Press the LEFT or RIGHT buttonsto adjust the Absolute Max CH Setpoint then press the OK button to storethe setting.

CH1 Maximum Setpoint Default: 180°F [82°C]CH1 Maximum Setpoint is the maximum setpoint for a CH1 heating callwhen an Outdoor Reset option is chosen in CH Demand. CH1 MaximumSetpoint is the fixed setpoint for a CH1 heating call when a Setpoint optionis chosen in CH Demand. Press the LEFT or RIGHT buttons to adjustthe CH1 Maximum Setpoint then press the OK button to store the setting.

CH1 Minimum Setpoint Default: 120°F [49°C]CH1 Minimum Setpoint is the minimum setpoint for a CH1 heating callwhen an Outdoor Reset option is chosen in CH Demand. This setting isnot applicable when a Setpoint option is chosen in CH Demand. CH1Minimum Setpoint must be set equal to or below the CH1 MaximumSetpoint. Press the LEFT or RIGHT buttons to adjust the CH1 MinimumSetpoint then press the OK button to store the setting.

Reset Curve Coldest Day Default: 0°F [-18°C]Reset Curve Coldest Day is the coldest outdoor design temperature of theheating system when an Outdoor Reset option is chosen in CH Demand.This setting is not applicable when a Setpoint option is chosen in CHDemand. Press the LEFT or RIGHT buttons to adjust the Reset CurveColdest Day then press the OK button to store the setting.

68ºF 188ºF

180ºF

CH1 MaximumSetpoint

60ºF 188ºF

120ºF

CH1 MinimumSetpoint

-30ºF 50ºF

0ºF

Reset CurveColdest Day

68ºF 188ºF

188ºF

Absolute MaxCH Setpoint

CH Settings

7

Reset Curve Warmest Day Default: 64°F [18°C]Reset Curve Warmest Day is the warmest outdoor design temperature ofthe heating system when an Outdoor Reset option is chosen in CHDemand. This setting is not applicable when a Setpoint option is chosenin CH Demand. Press the LEFT or RIGHT buttons to adjust the ResetCurve Warmest Day then press the OK button to store the setting.

CH2 Circuit Default: EnabledCH2 Circuit allows the CH2 Maximum and Minimum Setpoints to beenabled and disabled. When disabled, the CH2 heating call will operateusing the CH1 Maximum and Minimum Setpoints. Press the UP orDOWN buttons to select Enabled or Disabled then press the OK buttonto store the setting.• Enabled – A CH2 heating call will use CH2 Maximum and

Minimum Setpoints.• Disabled – A CH2 heating call will use CH1 Maximum and

Minimum Setpoints.

CH2 Maximum Setpoint Default: 140°F [60°C]CH2 Maximum Setpoint is the maximum setpoint for a CH2 heating callwhen an Outdoor Reset option is chosen in CH Demand. CH2Maximum Setpoint is the fixed setpoint for a CH2 heating call when aSetpoint option is chosen in CH Demand. Press the LEFT or RIGHTbuttons to adjust the CH2 Maximum Setpoint then press the OK buttonto store the setting.

CH2 Minimum Setpoint Default: 80°F [27°C]CH2 Minimum Setpoint is the minimum setpoint for a CH2 heatingcall when an Outdoor Reset option is chosen in CH Demand. This set-ting is not applicable when a Setpoint option is chosen in CH Demand.CH2 Minimum Setpoint must be set equal to or below the CH2Maximum Setpoint. Press the LEFT or RIGHT buttons to adjust theCH2 Minimum Setpoint then press the OK button to store the setting.Warm Weather Shutdown Default: OFFWarm Weather Shutdown allows the installer to enter an optional out-door temperature at which to disable the central heating function andany circulators placed into constant circulation with the Pump ConstantCirculation setting. The Prestige will continue to respond to a domes-tic hot water call or a 0-10V Modulation Signal when the outdoor tem-perature exceeds the Warm Weather Shutdown Temperature setting.Press the LEFT or RIGHT buttons to adjust the Warm WeatherShutdown Temperature then press the OK button to store the setting.The Warm Weather Shutdown icon is displayed on the homescreen when the outdoor temperature reaches the Warm WeatherShutdown Temperature.

60ºF 78ºF

64ºF

Reset CurveWarmest Day

CH2 Circuit


Off 78ºF

Off

Warm Weather Shutdown

CH Settings

8

Pump Constant Circulation Default: DisabledPump Constant Circulation allows the central heating circulators to beconstantly enabled even without a central heating call. Pump ConstantCirculation can be disabled by the Warm Weather Shutdown function. Adomestic hot water call will cause the circulators to be disabled during thedomestic call as long as DHW Priority is enabled. Press the UP orDOWN buttons to select Enabled or Disabled then press the OK button tostore the setting.• Enabled – The central heating circulators will be enabled for con-

stant circulation without a central heating call.Table 1: Circulator Operation with Constant Circulation = Enabled

• Disabled – The central heating circulators will only be enabled dur-ing a central heating call.

CH Post Pump Time Default: 1 MinuteCH Post Pump Time sets how long the central heating circulators willcontinue to operate at the completion of a heating call. ReferenceSystem Pump in CH Settings on page 10 to determine which circulatorswill continue to operate. Any call during the CH Post Pump Time will beignored until the post pump has completed. The CH Post Pump featureallows the heat remaining in the boiler at the completion of a call to besent to the heating system, which will improve the overall efficiency ofthe system. Press the LEFT or RIGHT buttons to adjust the CH PostPump Time then press the OK button to store the setting.

Freeze Protection Default: EnabledFreeze Protection allows the freeze protection feature to be enabled anddisabled. Press the UP or DOWN buttons to select Enabled or Disabledthen press the OK button to store the setting.• Enabled – The Freeze Protection feature is enabled to protect the

boiler from freezing. This feature monitors the boiler water tem-perature and responds as follows when no call is present:- 46°F [8°C] – Auxiliary Boiler Pump ON

- 42°F [6°C] – CH(1), Auxiliary Boiler & System Pumps ON.Burner operates at low fire.

- 60°F [15°C] – Freeze protection ends. Burner & all pumps OFFafter completing CH Post Pump Time.

• Disabled – The Freeze Protection feature is disabled.

Freeze Protection

EnabledDisabledEnabled

Pump ConstantCirculation

DisabledEnabledDisabled

Off 20 min.

1 min.

CH PostPump Time

Prestige Model CH2 Pump/System Pump

AuxillaryBoiler Pump

DHWPump

CH (1)Pump

Solo ON ON OFF ONExcellence ON ON OFF OFF

CH Settings

9

Freeze Protection should only be disabled when the system con-tains antifreeze to prevent the system from freezing. Serious dam-age could occur to the Prestige as well as the entire heating systemif Freeze Protection is disabled without antifreeze in the system.

The Prestige should NEVER be installed in a location wherefreezing could occur. Subjecting the Prestige to freezing condi-tions could lead to freezing of the condensate possibly causingserious injury or death.

Frost Protection Setpoint Default: -22ºF [-30ºC]Frost Protection will enable the central heating circulators if the outdoortemperature falls below the Frost Protection Setpoint and no call is present.This feature requires using the outdoor temperature sensor and is alwaysactive and cannot be disabled. Press the LEFT or RIGHT buttons to adjustthe Frost Protection Setpoint then press the OK button to store the setting.Table 2: Frost Protection Circulator Operation

Parallel Shift Value Default: 0°F [0°C]Parallel Shift allows the CH setpoint to be externally adjusted when aConstant option is chosen in CH Demand. When a Constant option is cho-sen in CH Demand, continuous CH1 and CH2 heating calls are generated.Simultaneous CH1 and CH2 calls will result in the Prestige operating at thehighest CH1 or CH2 setpoint. The CH1 or CH2 Thermostat terminals withthe highest setpoint will be used to adjust the setpoint. If the Thermostatterminals with the highest setpoint are open, the CH setpoint will decreaseby the Parallel Shift Value. If the Thermostat terminals with the highestsetpoint are closed, the CH setpoint will return to the highest CH1 or CH2setpoint. Press the LEFT or RIGHT buttons to adjust the Parallel ShiftValue then press the OK button to store the setting.CH Call Blocking Default: 1 MinuteCH Call Blocking sets the minimum time between burner firings forcentral heating calls. At the completion of a burner firing, the CH CallBlocking time will begin. The burner will not fire again until after theCH Call Blocking time has elapsed. The CH Call Blocking time onlyprevents the burner from firing, the central heating circulators willrespond to a central heating call. This blocking time has no affect ondomestic hot water calls. The CH Call Blocking feature prevents shortcycling of the burner and extends the life of the burner components.Press the LEFT or RIGHT buttons to adjust the CH Call Blockingtime then press the OK button to store the setting.

WARNING

WARNING

-22ºF 50ºF

-22ºF

Frost ProtectionSetpoint

0ºF 144ºF

0ºF

Parallel Shift Value

0 min. 30 min.

1 min.

CH Call Blocking

Prestige Model CH2 Pump/System Pump


DHWPump

CH (1)Pump

Solo ON ON OFF ONExcellence ON ON OFF OFF

CH Settings

10

System Pump Default: CH1/CH2System Pump allows the system pump operation to be adjusted for theapplication. Press the UP or DOWN buttons to select the desired SystemPump operation then press the OK button to store the setting. The SystemPump options are:• CH1/CH2/DHW – The system pump will be enabled for any CH1,

CH2, or DHW call. Figure 2, page 11 illustrates a typical existingsystem requiring this setting.

Table 3: Circulator Operation with System Pump = CH1/CH2/DHW

• CH1/CH2 – The system pump will only be enabled for a CH1 orCH2 central heating call. Figure 3, page 12 illustrates a systemzoned with zone valves requiring this setting.

Table 4: Circulator Operation with System Pump = CH1/CH2

• CH2 – The system pump will only be enabled for a CH2 centralheating call. The CH(1) pump will only be enabled for a CH1 cen-tral heating call. Figure 4, page 13 illustrates a system zoned withzone circulators requiring this setting.

Table 5: Circulator Operation with System Pump = CH2

Note 1: Domestic Hot Water Priority can be disabled which allows the CH and DHW circulators to operate at the same time.

The circulator operation shown above only applies when PrestigeModel is set to Solo. System Pump only allows the system pumpoperation to be adjusted when Prestige Model is set to Excellence.

NOTICE

System Pump

CH1/CH2/DHWCH1/CH2

CH2CH1/CH2

CH2 Pump/System Pump


DHWPump

CH (1)Pump

CH 1 Call ON ON OFF(Note 1) ON

CH 2 Call ON ON OFF ON

DHW Call OFF(Note 1) ON ON OFF

(Note 1)



DHWPump

CH (1)Pump



DHW Call ON ON ON OFF(Note 1)



DHWPump

CH (1)Pump

CH 1 Call OFF ON OFF(Note 1) ON

CH 2 Call ON ON OFF(Note 1) OFF

DHW Call OFF(Note 1) ON ON OFF

(Note 1)

11

CH Settings

CH(1

) Pum

p

Fig. 2: System Piping with System Pump = CH1/CH2/DHW

12

CH(1

) Pum

p

CH Settings

Fig. 3: System Piping with System Pump = CH1/CH2

13

CH(1

) Pum

p

Fig. 4: System Piping with System Pump = CH2

CH Settings

Demand Type

Switch SensorSwitch

14

DHW Settings

Navigation: Home Screen>Installer Menu>CH & DHWSettings>DHW SettingsThe DHW Settings menu contains settings related to domestic hotwater operation. Each line contains a DHW Setting followed by its cur-rent value. Six DHW Settings are displayed on the screen at one time.Press the UP or DOWN buttons to scroll through additional DHWSettings.

DHW Operation Default: EnabledDHW Operation allows the domestic hot water function to be enabledand disabled. Press the UP or DOWN buttons to select Enabled orDisabled then press the OK button to store the setting.

• Enabled - The Prestige will respond to a domestic hot water call.• Disabled - The Prestige will not respond to a domestic hot water

call. The domestic hot water operation disabled icon is dis-played on the home screen when domestic hot water operation hasbeen disabled.

Demand Type PRESTIGE Solo Default: SwitchPRESTIGE Excellence Default: Sensor

Demand Type allows the installer to select the type of device which willgenerate a domestic hot water call. Press the UP or DOWN buttons toselect the DHW Demand Type then press the OK button to store the set-ting. The DHW Demand options are:• Switch - A domestic hot water call from an aquastat or dry contact

switch will enable the Prestige with a fixed setpoint for a domestichot water call.

• Sensor - This option requires the use of Indirect Water HeaterSensor PSRKIT22 which is included with every PRESTIGE Solo.The PRESTIGE Excellence utilizes an Indirect Water HeaterSensor. The Prestige will monitor the DHW storage temperatureand generate a domestic hot water call when the temperature dropsbelow the DHW Storage Setpoint - DHW On Differential.

DHW Settings

DHW Settings

DHW OperationDemandBoiler DHW SetpointDHW Storage SetpointDHW On Di�erentialDHW Storage Adder

EnabledSwitch186ºF140ºF

6ºF46ºF

DHW Operation Enabled

DHW Operation


15

Boiler DHW Setpoint Default: 186ºF [86ºC]Boiler DHW Setpoint is the fixed boiler setpoint temperature during adomestic hot water call when the Switch option is chosen in DHWDemand. Press the LEFT or RIGHT buttons to adjust the Boiler DHWSetpoint then press the OK button to store the setting.

DHW Storage Setpoint Default: 140°F [60°C]DHW Storage Setpoint is the domestic hot water storage setpoint temper-ature when the Sensor option is chosen in DHW Demand. Press the LEFTor RIGHT buttons to adjust the DHW Storage Setpoint then press the OKbutton to store the setting.

The boiler setpoint is automatically set to the DHW StorageSetpoint + DHW Storage Adder when the Sensor option is cho-sen in DHW Demand.

DHW On Differential Default: 6°F [3°C]DHW On Differential sets how far the DHW storage temperature must fallbelow the DHW Storage Setpoint to create a domestic hot water call whenthe Sensor option is chosen in DHW Demand. The domestic hot water callwill end when the DHW storage temperature rises above the DHWStorage Setpoint. Press the LEFT or RIGHT buttons to adjust the DHWOn Differential then press the OK button to store the setting.

The DHW On Differential setting greatly affects the productionof domestic hot water. A low setting could result in a rapidresponse to a domestic hot water call resulting in a potentialscald hazard. It is strongly recommended that the installer uti-lize a thermostatic mixing valve on the hot water outlet of theIndirect Water Heater. Failure to comply could result in severepersonal injury, death, or substantial property damage.

NOTICE

DANGER

DHW Settings

96ºF 188ºF

186ºF

BoilerDHW Setpoint

4ºF 18ºF

6ºF

DHW On Di�erential

68ºF 150ºF

140ºF

DHW Storage Setpoint

DHW Priority


16

DHW SettingsDHW Storage Adder Default: 46°F [25°C]DHW Storage Adder is used to compute the boiler setpoint when theSensor option is chosen in DHW Demand. The boiler setpoint will beDHW Storage Setpoint + DHW Storage Adder for a domestic hot watercall. Press the LEFT or RIGHT buttons to adjust the DHW StorageAdder then press the OK button to store the setting.

DHW Post Pump Time Default: 1 MinuteDHW Post Pump Time sets how long the domestic hot water circulatorwill continue to operate at the completion of a domestic hot water call.Any call during the DHW Post Pump Time will be ignored until the postpump has completed. The DHW Post Pump feature allows the heatremaining in the boiler at the completion of a call to be sent to theIndirect Water Heater, which will improve the overall efficiency of thesystem. Press the LEFT or RIGHT buttons to adjust the DHW PostPump Time then press the OK button to store the setting.

DHW Priority Timeout Default: OffDHW Priority Timeout allows the installer to enter an optional time limitthat a domestic hot water call has priority over a central heating call whenDHW Priority is set to Enabled. Press the LEFT or RIGHT buttons toadjust the DHW Priority Timeout then press the OK button to store thesetting.

DHW Priority Default: EnabledDHW Priority allows the domestic hot water priority function to beenabled and disabled. Press the UP or DOWN buttons to select Enabledor Disabled then press the OK button to store the setting.• Enabled- Domestic hot water calls will have priority over a central

heating call. The boiler setpoint will be set to the domestic hotwater setpoint during a domestic hot water call. The DHW circu-lator will be enabled and the heating circulators will be disabledduring a domestic hot water call.

• Disabled - Domestic hot water calls will not have priority over acentral heating call. The boiler setpoint will be set to the domestichot water setpoint when only a domestic hot water call is present.

0ºF 54ºF

46ºF

DHWStorage Adder

Off 30 min.

1 min.

DHW PostPump Time

Off 120 min.

Off

DHW Priority Timeout

17

DHW Settings

The boiler setpoint will be set to the highest setpoint when simulta-neous domestic hot water and central heating calls are present. TheDHW circulator will be enabled during a domestic hot water call.The heating circulators will be enabled during a central heating call.

Simultaneous domestic hot water and central heating calls willresult in the PRESTIGE operating at the highest target temper-ature when DHW Priority is set to Disabled. The use of a mixingdevice on the lower temperature zones such as the Triangle TubeOptima Series SMV Control may be required to protect thelower temperature zones from damage.

DHW Priority should only be set to Disabled when PrestigeModel is set to Solo. Setting DHW Priority to Disabled whenPrestige Model is set to Excellence will not disable DHWPriority.

DHW Call Blocking Default: 0 MinuteDHW Call Blocking sets the minimum time between burner firings fordomestic hot water calls. At the completion of a burner firing, the DHWCall Blocking time will begin. The burner will not fire again until after theDHW Call Blocking time has elapsed. The DHW Call Blocking time onlyprevents the burner from firing, the domestic hot water circulator willrespond to a domestic hot water call. This blocking time has no affect oncentral heating calls. The DHW Call Blocking feature prevents shortcycling of the burner and extends the life of the burner components. Pressthe LEFT or RIGHT buttons to adjust the DHW Call Blocking time thenpress the OK button to store the setting.

DHW To CH Call Blocking Default: 1 MinuteDHW To CH Call Blocking sets the minimum time between a DHW burn-er firing and a CH burner firing. At the completion of a DHW burner fir-ing, the DHW to CH Call Blocking time will begin. The burner will notfire again for a central heating call until after the DHW To CH CallBlocking time has elapsed. The DHW To CH Call Blocking time only pre-vents the burner from firing, the central heating circulators will respond toa central heating call. This blocking time has no affect on domestic hotwater calls. The DHW To CH Call Blocking feature prevents the burnerfrom firing when switching from a domestic hot water call to a central heat-ing call. This allows the remaining heat in the heat exchanger to be dissi-pated and potentially satisfy the central heating call. Press the LEFT orRIGHT buttons to adjust the DHW To CH Call Blocking time then pressthe OK button to store the setting.

NOTICE

WARNING

0 min. 30 min.

0 min.

DHW Call Blocking

0 min. 30 min.

1 min.

DHW to CHCall Blocking

18

DHW Settings

Antilegionella Function Default: DisabledThe Antilegionella Function ensures that an Indirect Water Heater is heat-ed at least once per week to prevent the growth of Legionella bacteria.Press the UP or DOWN buttons to select Enabled or Disabled then pressthe OK button to store the setting.• Enabled- When the Switch option is chosen in DHW Demand, a

domestic hot water call is generated for 15 minutes once per weekto heat the Indirect Water Heater. When the Sensor option is cho-sen in DHW Demand, a domestic hot water call is generated untilthe DHW storage temperature reaches 140°F [60°C] once perweek. When the Sensor option is chosen in DHW Demand, theweekly timer is reset whenever the DHW storage temperaturereaches 140°F [60°C] to prevent unnecessary firings. This functionwill be active even if DHW Operation has been set to Disabled.

• Disabled - The Prestige will only fire in DHW mode when adomestic hot water call is received.

The Antilegionella Function should only be enabled when anIndirect Water Heater is installed. Enabling the AntilegionellaFunction without an Indirect Water Heater will result in thePrestige firing once per week in DHW mode. This could causea Manual Reset Hard Lockout resulting in substantial proper-ty damage.

The Antilegionella Function is most effective when the Sensoroption is chosen in DHW Demand. The use of an IndirectWater Heater Sensor ensures that the domestic hot water isheated to 140°F [60°C] at least once per week.

WARNING

BEST PRACTICE

Antilegionella Function

EnabledDisabledDisabled

Navigation: Home Screen>Installer Menu>CH & DHWSettings>Boiler SettingsThe Boiler Settings menu contains settings related to general boileroperation. Each line contains a Boiler Setting followed by its currentvalue.

Prestige Model PRESTIGE Solo Default: SoloPRESTIGE Excellence Default: Excellence

Prestige Model selects how the circulator / diverter valve line voltage ter-minals will operate. Press the UP or DOWN buttons to select Solo orExcellence then press the OK button to store the setting.• Solo - The circulator / diverter valve terminals can be used to oper-

ate CH(1), DHW, Auxiliary Boiler, and System circulators.• Excellence - The CH(1), DHW, and Auxiliary Boiler circulator /

diverter valve terminals will operate the internal boiler circulatorand diverter valve. Only the System circulator terminals are avail-able for operating a system circulator.

Excellence units also require setting Demand Type to Sensor forcorrect DHW operation.

Lockout Temp. Default: 210°F [99°C]Lockout Temp. allows the High Boiler Temperature lockout (E3) to betemporarily adjusted down to 102°F [39°C] for inspector demonstra-tion. Press the UP or DOWN buttons to select 210°F [99°C] or 102°F[39°C] then press the OK button to store the setting.

• 102°F [39°C] – A High Boiler Temperature lockout (E3) will occurwhen the boiler temperature reaches 102°F [39°C].

• 210°F [99°C] – A High Boiler Temperature lockout (E3) will occurwhen the boiler temperature reaches 210°F [99°C].

NOTICE

19

Boiler Settings

Prestige Model

SoloExcellence

Solo

Boiler Settings

Prestige ModelLockout Temp.Modbus Address

Solo

210ºF [99ºC]

0=BCST

Prestige Model Solo

Lockout Temp.

102ºF [39ºC]

210ºF [99ºC]210ºF [99ºC]

Boiler Settings

Reset All Settings

20

Modbus Address Default:0=BCSTModbus Address assigns the boiler with a unique address in the Modbuscontrol system. Press the LEFT or RIGHT buttons to change theModbus Address then press the OK button to store the setting. See Pages41 & 42 for Modbus Interface information.

Navigation: Home Screen>Installer Menu>Reset All SettingsReset All Settings allows the installer to reset all CH, DHW, Boiler andCascade settings back to the original PRESTIGE Solo factory defaults.Follow the onscreen instructions to reset all settings back to the origi-nal factory defaults

PRESTIGE Excellence units require setting Prestige Model toExcellence and DHW Demand Type to Sensor after using theReset All Settings function.

NOTICE

Reset All Settings

Press OK buttonto restore factory settings,

any other buttonto keep current settings.

Reset All Settings

0=BCST 247

0=BCST

Modbus Address

21

Factory Trimax Settings

DOMESTIC SETTING FACTORY DEFAULT MINIMUM SETTING MAXIMUM SETTING EZ SETUP RESET INSTALLER RESET

DHW Operation EnabledDemand SwitchBoiler DHW Setpoint 186°F [86°C] 96°F [35°C] 188°F [87°C]DHW Storage Setpoint 140°F [60°C] 68°F [20°C] 150°F [65°C]DHW On Differential 6°F [3°C] 4°F [2°C] 18°F [10°C]DHW Storage Adder 46°F [25°C] 0°F [0°C] 54°F [30°C]DHW Post Pump Time 1 minute OFF 30 minutesDHW Priority Timeout OFF OFF 120 minutesDHW Priority EnabledDHW Call Blocking 0 minute 0 minute 30 minutesDHW to CH Call Blocking 1 minute 0 minute 30 minutesAntilegionella Function Disabled

HEATING SETTING FACTORY DEFAULT MINIMUM SETTING MAXIMUM SETTING EZ SETUP RESET INSTALLER RESET

Heating Operation EnabledDemand Switch &

Outdoor ResetAbsolute Max CH Setpoint 188°F [87°C] 68°F [20°C] 188°F [87°C]CH1 Maximum Setpoint 180°F [82°C] 68°F [20°C] 188°F [87°C]CH1 Minimum Setpoint 120°F [49°C] 60°F [15°C] 188°F [87°C]Reset Curve Coldest Day 0°F [-18°C] -30°F [-34°C] 50°F [10°C]Reset Curve Warmest Day 64°F [18°C] 60°F [15°C] 78°F [25°C]CH2 Circuit EnabledCH2 Maximum Setpoint 140°F [60°C] 68°F [20°C] 188°F [87°C]CH2 Minimum Setpoint 80°F [27°C] 60°F [15°C] 188°F [87°C]Warm Weather Shutdown OFF OFF 78°F [25°C]Pump Constant Circulation DisabledCH Post Pump Time 1 minute OFF 20 minuteFreeze Protection EnabledFrost Protection Setpoint -22°F [-30°C] -22°F [-30°C] 50°F [10°C]Parallel Shift Value 0°F [0°C] 0°F [0°C] 144°F [80°C]CH Call Blocking 1 minute 0 minute 30 minutesSystem Pump CH1/CH2

CASCADE SETTING FACTORY DEFAULT MINIMUM SETTING MAXIMUM SETTING EZ SETUP RESET INSTALLER RESET

Stage Delay 60 seconds 0 second 255 secondsMinimum Firing Rate 30% 0% 100%Maximum Firing Rate 398 MBH [117kW] 0 MBH [0kW] 869 MBH [255kW]CH / DHW Boilers 0 0 6Automatic Rotation EnabledCH Proportional Gain 7 1 255CH Integral Gain 245 1 255DHW Proportional Gain 7 1 255DHW Integral Gain 245 1 255

Factory Trimax Settings

BOILER SETTING FACTORY DEFAULT MINIMUM SETTING MAXIMUM SETTING EZ SETUP RESET INSTALLER RESETPrestige Model SoloLockout Temperature 210°F [99°C]Modbus Address 0=BCST 0 247

22

Cascade Operating Information

Cascade Operating InformationThe TriMax Boiler Management System includes a Cascade function which allows multiple Prestigeboilers to operate together without the need for an external controller. One Prestige will be selected asthe Master and will be wired to accept all the low voltage control signals. The other Prestige boilers willbe designated as Slaves and will only have a communication cable connecting them to the other boilersin the Cascade System.

• The Cascade function allows up to six identical Prestige boilers to operate together in a singleheating system.

• Parallel Modulation fires as many boilers as possible to maximize system efficiency.• Lead Stage Automatic Rotation rotates the lead boiler to ensure even wear on each boiler in the

Cascade System. This function can be disabled by the Automatic Rotation Setting.

The Cascade Menu is divided into three sections

1. Cascade Information – Provides real time operating information of the Cascade System.See page 34.

2. Cascade Settings – Allows the installer to adjust the Cascade System settings for the appli-cation. See pages 35 through 40.

3. Cascade Autodetection – Automatically finds and configures each boiler of the CascadeSystem. See page 26.

23

Trimax Cascade Menu Structure

Cascade Information Menu Cascade AutodetectionCascade Settings Menu

Cascade Menu

Installer Menu

Cascade

Cascade

Cascade Information

Cascade RoleSystem Temp.Active BoilersTotal BoilersCascade Firing Rate

Master86ºF

02--

Cascade Role Master

Cascade Settings

Stage DelayMinimum Firing RateMaximum Firing RateCH / DHW BoilersAutomatic RotationCH Proportional Gain

60 sec30%

398 MBH0

Enabled 7

Stage Delay 60 sec

Cascade Autodetection

Press OK Buttonto begin Cascade

Autodetection, any other button to cancel

Trimax Cascade Menu Structure

24

Cascade Installation

Cascade Installation – System PipingStandard Cascade installations will utilize a balanced manifold system asthe primary / secondary connection to the system piping as shown inFigure 7, page 28 or a reverse return piping arrangement as shown inFigure 9, page 30. Split Cascade installations will utilize a balanced man-ifold system as the primary / secondary connection to the central heatingloop. Each boiler configured to respond to a domestic hot water call willalso have a direct connection to the indirect water heater as shown inFigure 11, page 32. Reference the Prestige Installation and MaintenanceManual for general boiler installation and piping requirements.

Cascade Installation – System Sensor InstallationCascade operation requires a System Temperature Sensor to be installedon the common supply header downstream of all boilers in the system.Place the System Temperature Sensor within 10’ of the last boiler in theCascade System for an accurate temperature reading. Proper placementand installation of the System Temperature Sensor is critical for reliablecascade operation. The type of System Temperature Sensor chosen alsogreatly affects the accuracy of the system temperature readings.Three types of System Temperature Sensor are available:

• Direct Immersion - A direct immersion temperature sensor(MDRKIT05) is the recommended type since it will provide themost accurate water temperature readings. Install the 1/2” NPTdirect immersion temperature sensor in a tee on the common sup-ply header downstream of all boilers in the system. Ensure that thetemperature sensor probe is directly in the water flow but not touch-ing the opposite side of the tee. Wire the sensor to terminals15 &16 of the Master boiler.

• Dry Well Installation – A temperature sensor (PSRKIT22) installedin a dry well will measure up to 10°F [5°C] lower than the actualwater temperature. All water setpoints must be lowered at theMaster boiler by 10°F [5°C] from the desired setpoints for reliableCascade operation. Install a 3/8”ID drywell in the common supplyheader downstream of all boilers in the system. The drywell shouldbe long enough to be directly in the water flow for the most accu-rate temperature reading. Insert the temperature sensor into thewell and wire to terminals 15 & 16 of the Master boiler.

• Pipe Mounted Installation – A temperature sensor (PTSENS12)mounted to the outside of the pipe will measure up to 20°F [11°C]lower than the actual water temperature. All water setpoints mustbe lowered at the Master boiler by 20°F [11°C] from the desired set-points for reliable Cascade operation. The Pipe Mounted tempera-ture sensor can be directly strapped to the outside of a 1” to 3”metallic pipe. Install the temperature sensor as follows:1. Remove the white plastic cover from the sensor2. Cut a small slit in the seal gasket on the end of the sensor.

Fig. 5: System SensorDirect Immersion

Fig. 6: System SensorDry Well Installation

25


3. Route 18 AWG 2-wire cable or similar cable through the seal gas-ket into the enclosure.

4. Push down on the orange wire terminal retainers to insert thewires into the sensor terminals. Release the orange wire terminalretainers and confirm that the wires are firmly attached to the sen-sor terminals.

5. Select a location for the sensor on the common supply headerdownstream of all boilers in the system. Clean the pipe with finesandpaper or emery cloth to ensure the pipe is clean and sensorwill make good contact with the pipe.

6. Press the white cover onto the sensor and strap the sensor to thepipe using the included wire tie.

7. Wire the sensor to terminals 15 & 16 of the Master boiler.

Cascade Installation – Cascade Communication Cable• A communication cable PTCAB01 must be installed between each

boiler in the Cascade System. The cable has a 6 pin molex connec-tor on one end and bare wires on the other end. The molex connec-tor plugs into the Cascade Slave connector of the Slave boiler. Thebare wires terminate on the Cascade Master terminals of the Masterboiler or prior Slave boiler in cascades of three or more boilers.Reference Figure 8,10,12 on pages 29, 31, 33 for wiring details. Theconnections are as follows:

Red Wire to Terminal #17White Wire to Terminal #18

Black Wire & Cable Shielding to Terminal #19

Cascade Installation – Low Voltage Wiring Connections• Thermostat Wiring – CH1 and CH2 calls must be wired into the

Cascade Master.• Outdoor Sensor Wiring – The outdoor temperature sensor must be

wired into the Cascade Master.• Domestic Hot Water Wiring – A DHW call must be wired into the

Cascade Master.• Additional Boiler Limits – Boiler Limits must be wired into each

boiler in the Cascade System. When a boiler limit opens, that par-ticular boiler will lockout and will be removed from Cascade Systemoperation. The other boilers in the Cascade System will continue tooperate if they are not in a lockout.

• External Modulation Control – An External Modulation Signal must bewired into the Cascade Master. The modulation signal will control thefiring rate of the entire Cascade System, not just the Cascade Master.

• Modbus Wiring – A building management system (BMS) connectionmust be wired into the Cascade Master.

26


Cascade Installation – Line Voltage Wiring Connections• Circulator Wiring - Reference Figures 8,10,12 on pages 29, 31, 33 for

circulator wiring required for each type of Cascade System. The cir-culator connections used will depend on the systems piping layout.

Each circulator is individually fused with a 2.5A fuse located in the ter-minal strip. The total combined amp draw of the CH (1), DHW, andAuxiliary Boiler Circulators must not exceed 4 amps at any time for thePRESTIGE Solo 60, 110, 175, or 250. The total combined amp drawof the CH (1), DHW, and Auxiliary Boiler Circulators must not exceed3 amps at any time for the PRESTIGE Solo 399. Use an isolation relayto lower the total combined amp draw if exceeding these limits.• Power Supply – A dedicated 120 VAC / 15A minimum service must

be used to power the boilers in the Cascade System. Multiple boil-ers in the Cascade System can be placed on the same electrical cir-cuit. Each boiler can draw a maximum of 8 amps.

• Alarm Wiring – The alarm contact closes whenever that particularPrestige is in a soft or hard lockout. The alarm contact will also closeon the Master boiler when any of the Slave boilers are locked out.

Cascade Installation – Cascade AutodetectionNavigation: Home Screen>Installer Menu>Cascade>CascadeAutodetectionThe Cascade System must be configured after wiring is completed andany required adjustments are made in Cascade Settings. The CascadeAutodetection function automatically finds and configures all boilers inthe Cascade System. This eliminates the need to manually configureeach boiler of the Cascade System. Select Cascade Autodetection onthe Master boiler then follow the onscreen instructions to performCascade Autodetection. Once Cascade Autodetection is finished, amessage will be displayed indicating how many boilers have beenfound. If the number of boilers found is correct, press OK to finishCascade Autodetection. If the number of boilers found is not correct,check the cascade communication cables between the boilers andrepeat Cascade Autodetection.

NOTICE

Cascade Autodetection

Press OK buttonto begin Cascade

Autodetection, any other button to cancel

27


Boiler #3 locked out dueto failed ignition

Boiler #2Slave

Boiler #1Master

The Master boiler indicatesthat boiler #3 is locked outbecause of failed ignition.

Failed Ignition

The burner failed to lightafter 5 ignition attempts.

Check gas supply to boiler.

If problem persists after two reset attempts, call service.

Press OK to reset.

[3] E1

Boiler #3Slave

Failed Ignition

The burner failed to lightafter 5 ignition attempts.

Check gas supply to boiler.

If problem persists after two reset attempts, call service.

Press OK to reset.

E1Slave Operation--

Cascade Operation – LockoutsIf a lockout occurs to a boiler in a Cascade System, it will be removed fromCascade System operation. The remainder of the Cascade System contin-ues to operate and the next available boiler will fire if necessary. TheLockout Screen will be displayed on the locked out boiler as well as theMaster boiler. The Master boiler Lockout Screen will also indicate whichboiler in the Cascade System is locked out.


28

AUX

AUX

AUX

DHW

SYS

CH

Fig. 7: Standard Primary Secondary Cascade System

Note:Reference Fig. 8, page 29 for cascade wiring.

29


CH1T-stat

5

ControlTriMaxLow voltage terminal strip

CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N

DHW Pump /Diverter Valve

L G N

CH(1) Pump / Diverter Valve

L G N

Power Supply

L G N

Alarm Contact

Line voltage terminal strip

1 2 3 4 6 7 8 9 10111213141516171819202122 232425262728293031323334353637383940

ACV

CH1T-stat

5


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


1 2 3 4 6 7 8 9 10111213141516171819202122 232425262728293031323334353637383940

ACV

CH1T-stat

5


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


1 2 3 4 6 7 8 9 10111213141516171819202122 232425262728293031323334353637383940

ACV

AUX

Zone

#1

Zone

Val

veE

nd S

witc

h

Out

door

Sen

sor

AUX

N G L

Master Prestige Boiler

Slave Prestige Boiler

Sys

tem

Sen

sor

SYS

AUX


Red Black & Shielding

Whi

teCascade Cable

(PTCAB01)

Cascade Cable(PTCAB01)


Whi

te

DHW CH

DH

W S

enso

r

Zone

#2

Zone

Val

veE

nd S

witc

h

Fig. 8: Standard Primary Secondary Cascade Wiring

Note: Reference Fig. 7, page 28 for cascade piping.

30


DHW

SYS

CH

Note:Reference Fig. 10, page 31 for cascade wiring.

Fig. 9: Standard Reverse Return Cascade System

31


CH1T-stat

5


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


1 2 3 4 6 7 8 9 10111213141516171819202122 232425262728293031323334353637383940

ACV

Hea

ting

Cal

l Fro

m

SZC

5Zo

ne P

anel

Out

door

Sen

sor

N G L



Sys

tem

Sen

sor

SYS



Whi

te




Whi

te

CHDHW

DH

W S

enso

r

CH1T-stat

Low voltage terminal strip

CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact

Line voltage terminal stripACV

CH1T-stat


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


CH1T-stat


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


ControlTriMax

ControlTriMax

ControlTriMax

141 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 2728 29 30 3132 33 34 35 36 37 38 39 40

141 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 2728 29 30 3132 33 34 35 36 37 38 39 40

141 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 2728 29 30 3132 33 34 35 36 37 38 39 40

Fig. 10: Standard Reverse Return Cascade WiringNote: Reference Fig. 9, page 30 for cascade piping.


32

DHW

CHCH

CH

SYS

ZC

DHW

Fig. 11: Split Cascade System

Note 1:Reference Fig. 12, page 33 for cascade wiring.

Note 2:DHW Priority must be set to Enabled in DHW Settings of the Cascade Master for proper operation.

33


CH1T-stat


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


CH1T-stat


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


CH1T-stat

ControlTriMax

ControlTriMax

ControlTriMax


CascadeSlave

CH2T-stat

OutdoorSensor

DHW Stat/Sens

ManualReset/lmt

AutoReset/lmt

Modulation Signal

+ -

SystemSensor

Cascade Master

ModbusA B G

CH2 / Sys Pump

L G N

Aux Boiler Pump

L G N


L G N


L G N

Power Supply

L G N

Alarm Contact


CH

Hea

ting

Cal

l Fro

m

SZC

5Zo

ne P

anel

DHW CH

Out

door

Sen

sor

DHW

N G L

DH

W S

enso

r



Sys

tem

Sen

sor

SYS

CH



Whi

te



Note: ZC Circulator controlled by SZC5 Zone Panel.


Whi

te

1 2 3 4 5 6 7 8 9 10 11 12 13 1415 16 17 18 19 20 21 22 23 24 25 26 2728 29 30 3132 33 34 35 36 37 38 39 40

141 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 2728 29 30 3132 33 34 35 36 37 38 39 40

141 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 2728 29 30 3132 33 34 35 36 37 38 39 40

Fig. 12: Split Cascade Wiring

Note: Reference Fig. 11, page 32 for cascade piping.

Cascade Information

34

Navigation: Home Screen>Installer Menu>Cascade>CascadeInformationCascade Information provides real time operating information of theCascade System. Each line contains an information item followed byits current value. See below for a list of all Cascade Information items.

System Temperature LoggingSystem Temperature has a logging function which records one sampleevery 12 minutes to produce a graph of the last 24 hours. Select SystemTemperature in Cascade Information then press the OK button to viewthe graph.

Cascade Information

Cascade Information

Cascade RoleSystem Temp.Active BoilersTotal BoilersCascade Firing Rate

Master86ºF

02--

Cascade Role Master

194

68

-24.00 -16.00 -8.00 0.00

System Temp.

Information Item Description

Cascade Role

Displays the current role of the Prestige in the Cascade System. CascadeRole will be one of the following:

• Master – Indicates this Prestige is the Master boiler in the CascadeSystem.

• Slave – Indicates this Prestige is a Slave boiler in the Cascade System.

• Standalone – Indicates this Prestige is not part of a Cascade System.

System TemperatureDisplays the current system temperature reading wired to the Masterboiler. If the system sensor is not wired in to the Master boiler,”--” isdisplayed.

Active Boilers Displays the current number of boilers fired in the Cascade System.

Total Boilers Displays the total number of boilers in the Cascade System.

Cascade Firing Rate Displays the current firing rate of the entire Cascade System.

Cascade Information Items

Cascade Settings

35

Navigation: Home Screen>Installer Menu>Cascade>CascadeSettingsThe Cascade Settings menu contains settings related to cascade operation.Each line contains a Cascade Setting followed by its current value. SixCascade Settings are displayed on the screen at one time. Press the UPor DOWN buttons to scroll through additional Cascade Settings.

Cascade Setting changes must be made on the Cascade Master.Cascade Autodetection must be performed after making anychanges to a Cascade Setting before the change will take effect.Stage Delay Default: 60 SecondsStage Delay sets the time delay before enabling or disabling a boiler in theCascade System. The Stage Delay begins once the Master boiler determines thata boiler must be enabled to reach the setpoint or when the Master boiler deter-mines a boiler should be disabled because of a decreasing load. Press the LEFTor RIGHT buttons to adjust the Stage Delay then press the OK button to storethe setting. Adjusting the Stage Delay will have the following effects:• Increase Stage Delay

- Reaching the setpoint could take longer due to a longer delaybetween enabling boilers.

- Overshooting the setpoint could occur due to boilers staying onlonger before being disabled.

• Decrease Stage Delay- Overshooting the setpoint could occur due to boilers being

enabled quicker.- Boilers will be disabled quicker, possibly increasing boiler

cycling and decreasing runtimes.

Minimum Firing Rate Default: 30%Minimum Firing Rate is the minimum firing rate of a single boiler in the CascadeSystem. The Master boiler uses this setting to determine when boilers can beenabled and disabled. Setting the Minimum Firing Rate below the recommend-ed minimum will result in boilers being enabled too quickly which may causesharp increases in temperature from the Cascade System. Setting the MinimumFiring Rate above the recommended minimum will delay the enabling of boilerswhich may lower the system efficiency. Press the LEFT or RIGHT buttons toadjust the Minimum Firing Rate then press the OK button to store the setting.The minimum recommended settings are:

NOTICE

Cascade Settings

Prestige Model Minimum Firing RateSolo 60 28%

Solo 110 Natural Gas 29%Solo 110 Propane Gas 27%

Solo 175 31%Solo 250 28%Solo 399 30%

Cascade Setting

Stage DelayMinimum Firing RateMaximum Firing RateCH/DHW BoilersAutomatic RotationCH Proportional Gain

60 sec30%

398 MBH0

Enabled 7

Stage Delay 60 sec

0% 100%

30%

Minimum Firing Rate

0sec. 255sec.

60Sec.

Stage Delay

Cascade Settings

36

Boiler Enabling AlgorithmThe Master boiler uses the following algorithm to determine when the nextboiler can be enabled:

Once the currently fired boilers reach the calculated firing rate, the nextboiler can be enabled without affecting the overall cascade firing rate. Forexample, the calculation for a Cascade System consisting of two PRES-TIGE Solo 399s would be:

Once the first PRESTIGE Solo 399 firing rate reaches 60%, the secondPRESTIGE Solo 399 can be enabled. Both will then fire at the minimum30% firing rate so that the overall output from the Cascade System remainsthe same.

Boiler Disabling AlgorithmOnce the firing rate of all currently fired boilers decreases to the MinimumFiring Rate, a boiler can be disabled. The boilers which continue to firewill increase their firing rate if required to replace the output of the dis-abled boiler.

Stable cascade operation requires that all boilers in a Cascade Systembe the same size. Mixing boiler sizes in a Cascade System could leadto temperature fluctuations and erratic cascade operation. Maximum Firing Rate Default: 398 MBHMaximum Firing Rate is the maximum firing rate of a single boiler in theCascade System. Press the LEFT or RIGHT buttons to adjust theMaximum Firing Rate then press the OK button to store the setting. Therecommended settings are:

Stable cascade operation requires that all boilers in a Cascade System bethe same size. Mixing boiler sizes in a Cascade System could lead to tem-perature fluctuations and erratic cascade operation.

NOTICE

NOTICE

Prestige Model Maximum Firing RateSolo 60 57 MBH

Solo 110 Natural Gas 109 MBHSolo 110 Propane Gas 95 MBH

Solo 175 170 MBHSolo 250 245 MBHSolo 399 398 MBH

0MBH 869MBH

398 MBH

MaximumFiring Rate

Number of Boilers Firing +1Number of Boilers Firing x Minimum Firing Rate = Individual Boiler Firing Rate

1 + 11

x 30% = 60%

Cascade Settings

37

0 6

0

CH/DHW BoilersCH/DHW Boilers Default: 0The CH/DHW Boilers setting specifies how many boilers in a SplitCascade System will respond to a domestic hot water call. The CH/DHWBoilers always include the Master boiler. The remaining boilers will onlyrespond to central heating calls. This allows the Cascade System to sat-isfy both central heating and domestic hot water calls at the same time.At the completion of a domestic hot water call, the CH/DHW Boilers willagain be available to respond to central heating calls. Press the LEFT orRIGHT buttons to adjust the CH/DHW Boilers setting then press theOK button to store the setting.

Splitting the Cascade System into CH only and CH/DHW boilersrequires the boilers to be piped as shown in Figure 11, page 32. TheCH/DHW boilers must be piped to both CH and DHW loads direct-ly for proper operation.

DHW Priority must be set to Enabled in DHW Settings of theCascade Master for proper operation.

All CH/DHW Boilers will respond to a domestic hot water call. It isimportant that the domestic load is capable of transferring all of theheat generated to prevent excessive boiler cycling.Automatic Rotation Default: EnabledAutomatic Rotation allows the lead stage automatic rotation function tobe disabled. Press the UP or DOWN buttons to select Enabled orDisabled then press the OK button to store the setting.

• Enabled – The lead boiler automatically rotates every time a call forheat is received when a Switch option is chosen in CH Demand orevery 24 hours when a Constant option is chosen in CH Demand.

• Disabled – The lead boiler is always the Master boiler followed byeach Slave boiler.

NOTICE

NOTICE

NOTICE

Automatic Rotation


Cascade Settings

38

CH Proportional Gain Default: 7CH Proportional Gain allows the cascade response to be adjusted for a cen-tral heating call. CH Proportional Gain has the greatest influence when thesystem temperature is far away from the setpoint. Press the LEFT orRIGHT buttons to adjust the CH Proportional Gain then press the OKbutton to store the setting. • Increase CH Proportional Gain

- The Cascade System will reach setpoint faster, but overshootingthe setpoint may occur.

- To reach the setpoint faster, increase the CH Proportional Gainvalue by 2. Perform Cascade Autodetection and initiate a centralheating call. Observe the cascade response and make furtheradjustments if necessary.

• Decrease CH Proportional Gain- The Cascade System will take longer to reach the setpoint, but

setpoint overshooting is minimized.- If the setpoint is reached too quickly, decrease the CH

Proportional Gain value by 2. Perform Cascade Autodetectionand initiate a central heating call. Observe the cascade responseand make further adjustments if necessary.

Only make adjustments to this setting after consulting ACV-TriangleTube Technical Support. Improper adjustment of CH ProportionalGain could lead to temperature fluctuations and erratic cascadeoperation.

CH Integral Gain Default: 245CH Integral Gain allows the cascade response to be adjusted for a centralheating call. CH Integral Gain has the greatest influence when the systemtemperature is close to the setpoint. Press the LEFT or RIGHT buttons toadjust the CH Integral Gain then press the OK button to store the setting.

• Increase CH Integral Gain- The Cascade System will take longer to reach the setpoint, but

setpoint overshooting is minimized.- If the setpoint is reached too quickly, increase the CH Integral

Gain value by 2. Perform Cascade Autodetection and initiate acentral heating call. Observe the cascade response and make fur-ther adjustments if necessary.

• Decrease CH Integral Gain- The Cascade System will reach setpoint faster, but overshooting

the setpoint may occur.

NOTICE

1 255

245

CH Integral Gain

1 255

7

CH Proportional Gain

Cascade Settings

39

- To reach the setpoint faster, decrease the CH Integral Gainvalue by 2. Perform Cascade Autodetection and initiate a cen-tral heating call. Observe the cascade response and make fur-ther adjustments if necessary.

Only make adjustments to this setting after consulting ACV-Triangle Tube Technical Support. Improper adjustment of CHIntegral Gain could lead to temperature fluctuations and erraticcascade operation.

DHW Proportional Gain Default: 7DHW Proportional Gain allows the cascade response to be adjusted for adomestic hot water call. DHW Proportional Gain has the greatest influ-ence when the system temperature is far away from the setpoint. Pressthe LEFT or RIGHT buttons to adjust the DHW Proportional Gain thenpress the OK button to store the setting.

• Increase DHW Proportional Gain- The Cascade System will reach setpoint faster, but overshooting

the setpoint may occur.- To reach the setpoint faster, increase the DHW Proportional

Gain value by 2. Perform Cascade Autodetection and initiate adomestic hot water call. Observe the cascade response andmake further adjustments if necessary.

• Decrease DHW Proportional Gain- The Cascade System will take longer to reach the setpoint, but

setpoint overshooting is minimized.- If the setpoint is reached too quickly, decrease the DHW

Proportional Gain value by 2. Perform Cascade Autodetectionand initiate a domestic hot water call. Observe the cascaderesponse and make further adjustments if necessary.

Only make adjustments to this setting after consulting ACV-Triangle Tube Technical Support. Improper adjustment of DHWProportional Gain could lead to temperature fluctuations anderratic cascade operation.

NOTICE

NOTICE

1 255

7

DHW Proportional Gain

Cascade Settings

40

DHW Integral Gain Default: 245DHW Integral Gain allows the cascade response to be adjusted for adomestic hot water call. DHW Integral Gain has the greatest influencewhen the system temperature is close to the setpoint. Press the LEFT orRIGHT buttons to adjust the DHW Integral Gain then press the OK but-ton to store the setting.

• Increase DHW Integral Gain- The Cascade System will take longer to reach the setpoint, but

setpoint overshooting is minimized.- If the setpoint is reached too quickly, increase the DHW Integral

Gain value by 2. Perform Cascade Autodetection and initiate adomestic hot water call. Observe the cascade response and makefurther adjustments if necessary.

• Decrease DHW Integral Gain- The Cascade System will reach setpoint faster, but overshooting

the setpoint may occur.- To reach the setpoint faster, decrease the DHW Integral Gain

value by 2. Perform Cascade Autodetection and initiate a domes-tic hot water call. Observe the cascade response and make fur-ther adjustments if necessary.

Only make adjustments to this setting after consulting ACV-Triangle Tube Technical Support. Improper adjustment of DHWIntegral Gain could lead to temperature fluctuations and erraticcascade operation.

NOTICE

1 255

245

DHW Integral Gain

41

Modbus Interface

Modbus InterfaceThe Modbus Interface allows a Building Management System (BMS) to directly connect to the Prestige.A BMS can read information from the boiler to determine its operating state, lockout status, sensor read-ings, etc. A BMS can also operate the boiler by providing a setpoint.

Table 6: Modbus ConfigurationProtocol MODBUS RTU

Baud Rate 38400bpsData Length 8

Parity NoneStop Bits 1

Physical Layer RS485 (2 wire)

Table 7: Supported CommandsDEC HEX Description

03 0x03 Read Holding Registers04 0x04 Read Input Registers06 0x06 Write Single Register16 0x10 Write Multiple Registers17 0x11 Report Slave ID

Table 8: Holding Registers (Read/Write)Address

DEC (HEX)SupportedCommands Description Byte: Format Notes

512 (0x0200) 0x030x060x10

CH Demand MB:U8

LB:U8

Writing0= Modbus CH1 Demand has priorityover a DHW call255 = DHW call has priority over aModbus CH1 Demand

Reading0 = No CH Calls Present255 = CH1 or CH2 Call Present

Writing0 = End CH1 Demand255= Begin CH1 DemandA CH1 Demand lasts for 30 secondsfrom the last successful write.

513 (0x201) 0x030x060x10

Maximum Firing Rate LB:U8 Value = Maximum Firing Rate %This register becomes active when 255is written to register 512 (0x0200)

514 (0x202) 0x030x060x10

CH Setpoint LB:U8 Value = CH Setpoint °CThis register becomes active when 255is written to register 512 (0x0200)

1280 (0x0500) 0x03 CH1 MaximumSetpoint

LB:U8 Value = °C

1281 (0x0501) 0x03 DHW Storage Setpoint LB:U8 Value = °C

42

Modbus Interface

Table 9: Input Registers (Read Only)Address

DEC (HEX)SupportedCommands Description Byte: Format Notes

0 (0x0000) 0x04 Boiler Status LB: Flag8 Bit: Description0: PC Manual Mode1: DHW Mode2: CH Mode3: Freeze Protection Mode4: Flame Present5: CH(1) Pump6: DHW Pump7: System / CH2 Pump0 = Off, 1 = On

1 (0x0001) 0x04 Lockout Status MB: Flag8

LB:U8

Bit: Description1: Lockout Code Type0 = Automatic Reset Lockout1 = Manual Reset Lockout

Value = Lockout Code2 (0x0002) 0x04 Lockout Status LB:U8 0 = Single / Master Boiler

1 = Slave 12 = Slave 23 = Slave 34 = Slave 45 = Slave 5F = Single / Master Display

768 (0x0300) 0x04 Boiler SupplyTemperature /

System Temperature

S16 Value = 0.1°CInvalid Value = 32768 (0x8000)Value is the Boiler SupplyTemperature unless the SystemTemperature Sensor is installed

769 (0x0301) 0x04 Boiler ReturnTemperature

LB:S8 Value = °CInvalid Value = 65472 (0xFFC0)

770 (0x0302) 0x04 DHW StorageTemperature

LB:S8 Value = °CInvalid Value = 32768 (0x8000)

771 (0x0303) 0x04 Boiler FlueTemperature

LB:S8 Value = °CInvalid Value = 65472 (0xFFC0)

772 (0x0304) 0x04 Outdoor Temperature LB:S8 Value = °CInvalid Value = 32768 (0x8000)

773 (0x0305) 0x04 Future Use LB:U8

774 (0x0306) 0x04 Flame IonizationCurrent

LB:U8 Value = Flame Current µA

775 (0x0307) 0x04 Boiler / CascadeFiring Rate

LB:U8 Value = Firing Rate %

776 (0x0308) 0x04 Boiler Setpoint LB:U8 Value = °CInvalid Value = 32768 (0x8000)

43

Manual Operation

Navigation: Home Screen>Installer Menu>Manual OperationThe Manual Operation Screen allows the burner and circulators to be man-ually enabled for testing.

FanPress the OK button while the FAN icon is highlighted to manually firethe burner and power the CH (1) circulator. Press the LEFT andRIGHT buttons to adjust the firing rate from 1 % (Low Fire) to100% (High Fire). Hold down the LEFT or RIGHT buttons to rapidlyincrease or decrease the firing rate. Press the OK button again while theFAN icon is highlighted to shutdown the burner when finished.

An adequate CH load must be present to dissipate the heat generatedwhile the burner is manually fired. If an adequate CH load is not avail-able, an indirect water heater can be used to dissipate the heat by creat-ing a domestic hot water call which will enable the DHW circulator.

CH CH1Press the OK button while the CH CH1 icon is highlighted to manuallypower the CH (1) circulator. Press the OK button again while the CHCH1 icon is highlighted to shutdown the CH (1) circulator.

The Auxiliary Boiler circulator is also powered when the CH (1) cir-culator is manually enabled.

DHWPress the OK button while the DHW icon is highlighted to manuallypower the DHW circulator. Press the OK button again while the DHWicon is highlighted to shutdown the DHW circulator.

The Auxiliary Boiler circulator is also powered when the DHW circu-lator is manually enabled.

SYS CH2Press the OK button while the SYS CH2 icon is highlighted to manuallypower the System circulator. Press the OK button again while the SYSCH2 icon is highlighted to shutdown the System circulator.

NOTICE

NOTICE

NOTICE

Manual Operation

Manual Operation

Released

O!

O!

O!

CHCH1

FAN

DHW

SYSCH2

Manual Operation

Released

O!

O!

O!

CHCH1

FAN

DHW

SYSCH2

Manual Operation

Released

O!

O!

O!DHW

FAN

CHCH1

SYSCH2

Manual Operation

Released

O!

O!

O!SYSCH2

FAN

DHW

CHCH1

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Triangle Tube - 1 Triangle Lane - Blackwood, NJ 08012 - Tel: (856) 228 8881 - Fax: (856) 228 3584E-mail: [email protected]

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